Improvement in ttjbing-ciiamps



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WILLIAM H. DOWNING, OBPIONEEB, PENNSYLVANIA.

Letters Patent No. 106,563, dated August 23, 1870.

IMPROVEMENT IN TUBING-CLAMPS.

The Schedule referred to in these Letters Patent and making part 0f the same.

To==all whom 'it may concern:-

.Be it known that I,V WILLIAM H. Dowxixe,"'of Pioneer', in the county of Ven-.tngo and State of Pennsylvania, have invented a new and improved 'lfubing` Clamp; and I do hereby declare that the following is a full, clear, and exact description thereof, which `will the tube below the enlarged coupling-point, and for attachment to the hoisting-chain, of a ring with an openingairanged to be set-to coincide with the bifurcation, foi-'the reception ofthe tubes, and for turning afterward, to confine the "tube therein, all as hereinafter more fully specified. Figure l'is a sectional elevation ot my improved clamp or clutch, and I Figure 2 is a. plan view of tbe same.

Similar letters of reference indicate corresponding' parts.

A is the'bii'urcated block, having a. bail, B, or other means for attaching to the hoisting-chain, and adapted for the reception of the tube D, in the bottom ofthe -notch' G, taking under the collar D', or other enlargement for the coupling-joint.

I make a. circular hub, E, atthe back ofthenotch Q, which enters it to about the center, and provide an open ring, F, to encircle it and turn thereon, so as to cause the opening thereof to coincide with the not-ch G, for the receptiouoi the tube,as shown ,iiig 2; and Iprovide the ring with a. spring locliing-pixnG, or other suitable fastening device, arranged for confining the ring in the position for the reception of the tube, or for securing it; and, for preventing the ring from falling ott" the hub E, I 'make a. `groove, H, inv

the face oi' the latter, and arrange the confining-pins intthe ring engaging the groove, but turning freely in V1 y.

After the tube has beenreceivcd by the block and the ring, the latter is turned, and secured'in the position `represented in fig.42, `thereby securely holding the tube.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- The,l combination, with the block A, having the notolrO and circular-notched hub'E, and arranged tor attachment to a .hoisting-chain, ot' the notched-'con- Afilling-ring F, provided with the lookingpinV G, or

other locking device, substantinll y as speoitied.

The above specification of my invention signed by me this 15th dey of February, 1870. i

. l WM. H. DOWNING.

Titnesses l GEORGE W. DOWNING, GEO. W. M ABEE. 

